Ammonium nitrate 65 61 66
Potassium nitrate 5 5 5
Trinitro-toluene 6 15 15
Flour 4 4 4
Sodium chloride 20 15 10
=ALDORFIT= is a simpler mixture intended for use where
there is no danger of fire-damp--
Ammonium nitrate 81
Trinitro-toluene 17
Flour 2
It is authorised in Great Britain.
=PERDORFIT= contains not more than 52 per cent. of potassium
perchlorate, sodium and ammonium nitrates, not more than 29 per cent.
of trinitro-toluene and vegetable meal or gums.
=DRAGONITE.=--A coal-mine explosive made by Curtis’s and Harvey,
formerly on the Permitted List--
Nitroglycerine 35·5
Nitrocotton 2·5
Potassium nitrate 44·5
Vaseline 5·5
Wood meal and charcoal 12
=DREADNOUGHT POWDER.=--A coal-mine explosive made by Roburite
and Ammonal, Ltd., for a time on the Permitted List--
_Date of Permit_ 1-9-13
Ammonium nitrate 75·4
Trinitro-toluene 4
Ammonium chloride 5
Sodium chloride 15·5
Red oil 0·1
Limit charge 32 oz.
Power (swing of ballistic
pendulum) 2·05”
There is also Quarry Dreadnought Powder, which is not a permitted
explosive.
=DUNNITE.=--A high explosive used by the United States for
filling shell. It is stated to give dangerous compounds with iron, so
apparently is a compound of picric acid.
=DU PONT PERMISSIBLE.=--An American coal-mine explosive. The
following is on the British Permitted List--
No. 1.
_Date of Permit_ 26-4-16
Nitroglycerine 9·5
Ammonium nitrate 67·5
Wood pulp 8
Sodium chloride 15
Limit charge 18 oz.
Power (swing of ballistic
pendulum) 2·82”
=*DU PONT SMOKELESS POWDER.=--An American shot-gun powder of the
fibrous 36-grain bulk type--
Soluble nitro-cellulose 95·8
Metallic nitrates 2·2
Moisture 2·0
=DUXITE.=--A coal-mine explosive made by the Westphalia Anhalt
Explosives Co. It passed the Rotherham Test, and was for a time on
the British Permitted List--
Nitroglycerine 32
Nitrocotton 1
Sodium nitrate 28
Wood meal 10
Ammonium oxalate 29
Limit charge 12 oz.
Power (swing of ballistic pendulum) 2·45”